KR100424334B1 - bearing - Google Patents

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Publication number
KR100424334B1
KR100424334B1 KR10-2001-0041387A KR20010041387A KR100424334B1 KR 100424334 B1 KR100424334 B1 KR 100424334B1 KR 20010041387 A KR20010041387 A KR 20010041387A KR 100424334 B1 KR100424334 B1 KR 100424334B1
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KR
South Korea
Prior art keywords
cage
inner ring
rolling elements
bearing
coupled
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KR10-2001-0041387A
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Korean (ko)
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KR20010079383A (en
Inventor
장동옥
Original Assignee
주식회사 한일하이테크
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Priority to KR10-2001-0041387A priority Critical patent/KR100424334B1/en
Publication of KR20010079383A publication Critical patent/KR20010079383A/en
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Publication of KR100424334B1 publication Critical patent/KR100424334B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/225Details of the ribs supporting the end of the rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/361Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with cylindrical rollers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

조립 및 분해를 간편하게 하는 베어링에 대해 개시한다. 이 베어링은 내륜(110)과 외륜(120) 및 롤링소자(140)들의 간격을 유지시키는 케이지(130)들이 상호 회전가능하게 결합된 구조를 가진다. 내륜(110)은 샤프트가 결합되는 중공(115)이 형성되고, 외주면 양단 가장자리에 제1환형리브(111a)(111b)가 형성되어 있다. 외륜은 내륜과 동심상으로 마련되며 그 내주면 가장자리에 제2환형리브(121a)(121b)가 형성되어 있다. 롤링소자는 제1환형리브와 제2환형리브로 이루어지는 통로(150)를 따라 구름이동가능하게 마련된다. 케이지는 그 주면에 롤링소자들이 헐겁게 결합되는 복수의 결합공(131)들이 일정간격으로 형성되어 있다. 케이지의 각 결합공의 일측에는 롤링소자들의 이탈 또는 결합이 가능하도록 열려진 개구(132a)(132b)가 형성되어 있다. 인접하는 결합공 상호간에는 결합공(131)을 서로 연결하는 연결리브(133a)(133b)들이 형성된다. 이 베어링은 롤링소자들이 제1,2환형리브에 의해서 이탈이 방지되고 케이지는 롤링소자들에 의해서 이탈이 방지되어 안정된 구동을 가능하게 한다.Disclosed is a bearing that simplifies assembly and disassembly. The bearing has a structure in which the cage 130 for maintaining the gap between the inner ring 110 and the outer ring 120 and the rolling elements 140 is rotatably coupled to each other. The inner ring 110 has a hollow 115 to which the shaft is coupled, and first annular ribs 111a and 111b are formed at both edges of the outer circumferential surface thereof. The outer ring is provided concentrically with the inner ring, and second annular ribs 121a and 121b are formed at the edge of the inner circumferential surface thereof. The rolling element is provided to be movable in a cloud along the passage 150 formed of the first annular rib and the second annular rib. The cage has a plurality of coupling holes 131 in which rolling elements are loosely coupled to the main surface thereof at regular intervals. Openings 132a and 132b open at one side of each coupling hole of the cage to allow separation or coupling of the rolling elements. Connection ribs 133a and 133b which connect the coupling holes 131 to each other are formed between adjacent coupling holes. The bearing prevents the rolling elements from being separated by the first and second annular ribs, and the cage is prevented from being released by the rolling elements, thereby enabling stable driving.

Description

베어링{bearing}Bearing

본 발명은 회전기기의 축부분을 지지하는 베어링에 관한 것으로써, 특히 레이디얼하중과 드러스트하중이 작용하는 부분에 적용이 가능하고 또한 높은 베어링압력이 작용하는 곳에 적용이 가능하며 채용되는 롤링소자들의 이탈이 방지되도록 한 베어링에 관한 것이다.The present invention relates to a bearing for supporting a shaft portion of a rotating machine, and in particular, is applicable to a portion where radial load and thrust load are applied, and also applicable to a place where high bearing pressure is applied and a rolling element employed It relates to a bearing to prevent the departure of these.

통상의 베어링을 나타낸 도 1을 참조하면, 이는 내륜(10;inner ring)과 외륜(20;outer ring) 및 이들 사이에 채용되는 롤링소자(30;볼 또는 롤러)와 이들 롤링소자(30)들의 간격을 유지시키고 이탈을 방지시키는 케이지(40;cage)로 이루어진다. 참조번호 50은 윤활유의 누출을 방지하고 베어링 내부의 오염을 방지시키기 위한 쉴드커버(Shield cover)이다.Referring to FIG. 1, which shows a conventional bearing, it is an inner ring 10 and an outer ring 20 and a rolling element 30 (ball or roller) employed therebetween and of these rolling elements 30. It consists of a cage (40) to maintain the spacing and to prevent separation. Reference numeral 50 is a shield cover to prevent leakage of lubricant and contamination of the inside of the bearing.

상기와 같은 통상의 베어링은 다음과 같은 문제점을 가진다.Conventional bearings as described above have the following problems.

첫째, 케이지(40)가 롤링소자(30)를 감싸도록 제1커버(41)와 제2커버(42)가 상호 결합된 구조를 가짐으로써, 조립이 번거롭고 구조가 복잡하다.First, as the cage 40 has a structure in which the first cover 41 and the second cover 42 are coupled to each other so as to surround the rolling element 30, assembly is cumbersome and the structure is complicated.

둘째, 롤링소자(30)로서 볼(ball)이 채용되는 경우 레이디얼 하중에 비하여 드러스트 하중에 대한 베어링 압력이 낮다. 따라서 변동하중이 작용하는 부분에는 상기와 같은 베어링의 채용은 불리하다.Second, when a ball is employed as the rolling element 30, the bearing pressure against the thrust load is lower than that of the radial load. Therefore, the use of such a bearing is disadvantageous in the part where the variable load acts.

한편, 도 2에 도시된 바와 같이 일방향으로 롤링소자가 결합되는 케이지(60)가 채용되는 경우, 충격 또는 롤링소자(30)의 마모에 의해 케이지(40)가 이탈되는 염려가 있다.On the other hand, when the cage 60 is coupled to the rolling element in one direction as shown in Figure 2, there is a fear that the cage 40 is separated by the impact or wear of the rolling element 30.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서, 다음과 같은 목적을 가진다.The present invention has been made to solve the above problems, and has the following object.

첫째, 구조가 간단하고 조립이 간편하도록 개량된 베어링을 제공하는 데 있다.First, to provide a bearing that is improved in structure and simple assembly.

둘째, 레이디얼하중 또는 드러스트하중이 작용하는 부분에 채용이 가능하도록 개량된 베어링을 제공하는 데 있다.Second, to provide a bearing that is improved to be employed in the portion where the radial load or the thrust load acts.

세째, 롤링소자의 마모에도 불구하는 케이지의 이탈이 방지되도록 개선된 구조를 가지는 베어링을 제공하는 데 있다.Third, it is to provide a bearing having an improved structure to prevent the cage from being separated despite the wear of the rolling element.

도 1은 종래 베어링을 나타낸 사시도,1 is a perspective view showing a conventional bearing,

도 2는 종래 케이지를 나타낸 사시도,2 is a perspective view showing a conventional cage,

도 3은 본 발명 베어링을 나타낸 사시도,Figure 3 is a perspective view of the bearing of the present invention,

도 4는 도 3의 분리 사시도,4 is an exploded perspective view of FIG. 3;

도 5는 도 3의 단면도,5 is a cross-sectional view of FIG.

도 6은 본 발명을 설명 하기 위한 개략도,6 is a schematic view for explaining the present invention,

도 7은 본 발명 베어링의 결합 정면도이다.7 is a combined front view of the bearing of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

110...내륜 111a,111b...제1환형리브110 ... inner ring 111a, 111b ... first round rib

112...제1이탈홈 120...외륜112 ... 1st release groove 120 ... outer ring

121a,121b...제1환형리브 122...제2이탈홈121a, 121b ... 1st annular rib 122 ... 2nd release groove

130...케이지 140...롤링소자141...리세스130 Cage 140 Rolling element 141 Recess

상기 목적을 달성하는 본 발명에 따른 베어링은,Bearing according to the present invention to achieve the above object,

샤프트가 결합되는 중공이 형성되고, 외주면 양단 가장자리에 제1환형리브가 형성된 내륜;과An inner ring having a hollow coupled to the shaft and having first annular ribs formed at both edges of the outer circumferential surface thereof; and

상기 내륜보다 큰 중공을 가지고 내륜과 동심상으로 마련되며 그 내주면의 양단 가장자리에 제2환형리브가 형성된 외륜;과An outer ring having a larger hollow than the inner ring and provided concentrically with the inner ring and having second annular ribs formed at both edges of the inner circumferential surface thereof; and

상기 제1환형리브와 제2환형리브로 이루어지는 통로를 따라 구름이동가능하게 마련되는 복수의 롤링소자;와A plurality of rolling elements provided to be cloud-movable along a passage consisting of the first annular rib and the second annular rib;

상기 내륜과 외륜사이에 동심상으로 회전가능하게 결합되고, 그 주면에 상기 롤링소자들이 헐겁게 결합되는 복수의 결합공들이 일정간격으로 형성된 케이지;를 포함하여 된 것을 특징으로 한다.The cage is rotatably coupled concentrically between the inner ring and the outer ring, the cage formed with a plurality of engaging holes in which the rolling elements are loosely coupled to the main surface at regular intervals.

상기 케이지의 각 결합공의 일측에는 상기 롤링소자들의 이탈 또는 결합이 가능하도록 열려진 개구가 형성되되 각 개구들은 인접하는 결합공 상호간 반대측에 형성된다.Openings are formed at one side of each coupling hole of the cage to allow separation or coupling of the rolling elements, and each opening is formed at opposite sides between adjacent coupling holes.

또한, 상기 제1환형리브와 제2환형리브에는 각각 제1이탈홈과 제2이탈홈이 형성되어서, 상기 제1이탈홈과 제2이탈홈이 마주볼때 상기 롤링소자들의 분리가 가능하도록 되어 있다.In addition, the first annular ribs and the second annular ribs are formed with a first release groove and a second release groove, respectively, so that the first element and the second release groove when the rolling element is possible to separate. .

상기 롤링소자의 일단부에는 리세스가 형성되어서, 상기 케이스지와의 마찰저항이 저감되도록 되어 있다.A recess is formed in one end of the rolling element to reduce the frictional resistance with the case paper.

상기 본 발명의 특징에 의하면, 본 발명 베어링은 롤링소자들이 제1,2환형리브에 의해서 이탈이 방지되고 상기 케이지는 롤링소자들에 의해서 이탈이 방지되어 안정된 구동을 가능하게 한다.According to the above characteristics of the present invention, the bearing of the present invention is prevented from being separated by the first and second annular ribs of the rolling elements and the cage is prevented from being separated by the rolling elements to enable stable driving.

이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 베어링을 나타낸 도 3 및 도 4를 참조하면, 이는 내륜(110)과 외륜(120) 및 롤링소자(140)들의 간격을 유지시키는 케이지(130)들이 상호 회전가능하게 결합된 구조를 가진다.3 and 4 showing the bearing according to the present invention, it is a structure in which the cage 130 for maintaining the interval between the inner ring 110 and outer ring 120 and the rolling element 140 is rotatably coupled to each other Have

상기 내륜(110)은 샤프트(미도시)가 결합되는 중공(115)이 형성되고, 외주면 양단 가장자리에 제1환형리브(111a)(111b)가 형성되어 있다.The inner ring 110 has a hollow 115 to which a shaft (not shown) is coupled, and first annular ribs 111a and 111b are formed at both edges of the outer circumferential surface thereof.

상기 외륜(120)은 상기 내륜(110)보다 큰 중공(125)을 가지고 내륜(110)과 동심상으로 마련되며 그 내주면의 양단 가장자리에 제2환형리브(121a)(121b)가 형성되어 있다.The outer ring 120 has a hollow 125 larger than the inner ring 110 and is provided concentrically with the inner ring 110, and second annular ribs 121a and 121b are formed at both end edges of the inner circumferential surface thereof.

상기 롤링소자(140)는 원기둥형 롤러로서 제1환형리브(111a)(111b)와 제2환형리브(121a)(121b)로 이루어지는 통로(150)(도6참조)를 따라 구름이동가능하게 마련된다.The rolling element 140 is a cylindrical roller provided so as to be able to move in a cloud along a passage 150 (see FIG. 6) including a first annular rib 111a, 111b and a second annular rib 121a, 121b. do.

상기 케이지(130)는 상기 내륜(110)과 외륜(120)사이에 동심상으로 회전가능하게 결합되고, 그 주면에 상기 롤링소자(140)들이 헐겁게 결합되는 복수의 결합공(131)들이 일정간격으로 형성되어 있다.The cage 130 is rotatably coupled concentrically between the inner ring 110 and the outer ring 120, a plurality of coupling holes 131 are loosely coupled to the main surface of the plurality of coupling holes (131) It is formed.

상기 케이지(130)의 각 결합공(131)의 일측에는 상기 롤링소자(140)들의 이탈 또는 결합이 가능하도록 열려진 개구(132a)(132b)가 형성되어 있다. 이들 각 개구(132a)(132b)들은 인접하는 결합공(131) 상호간 반대측에 형성되어 있다. 따라서 인접하는 결합공(131) 상호간에는 결합공(131)을 서로 연결하는 연결리브(133a)(133b)들이 형성된다.Openings 132a and 132b open at one side of each coupling hole 131 of the cage 130 to allow separation or coupling of the rolling elements 140 are formed. These openings 132a and 132b are formed on opposite sides of adjacent coupling holes 131. Therefore, connecting ribs 133a and 133b connecting the coupling holes 131 to each other are formed between the adjacent coupling holes 131.

한편, 도 4 및 도 7을 참조하면, 상기 제1환형리브(111a)(111b)와 제2환형리브(121a)(121b)에는 각각 제1이탈홈(112)과 제2이탈홈(122)이 형성되어서, 상기 제1이탈홈(112)과 제2이탈홈(122)이 마주볼때 상기 롤링소자(140)들의 분리가 가능하도록 되어 있다.Meanwhile, referring to FIGS. 4 and 7, the first annular ribs 111a and 111b and the second annular ribs 121a and 121b respectively have first and second release grooves 112 and 122. Is formed, it is possible to be separated from the rolling element 140 when the first escape groove 112 and the second escape groove 122 face each other.

상기와 같은 구성을 가지는 본 발명에 따른 베어링은 상기 제1환형리브(111a)(111b)와 제2환형리브(121a)(121b)에 의해서 형성되는 통로(150)에 롤링소자(140)들이 결합되어 이탈이 방지되고, 또한 케이지(130)는 교호적으로 형성되는 연결리브(133a)(133b)에 의해서 이탈이 방지된다. 즉, 도 5에 도시된 바와 같이, 케이지(130)가 우측방향으로 이탈하려 하는 경우 연결리브(133a)에 의해서 이탈이방지되고 또한, 좌측방향으로 이탈하려 하는 경우에는 연결리브(133b)에 의해서 이탈이 방지되게 된다.In the bearing according to the present invention having the configuration described above, the rolling elements 140 are coupled to the passage 150 formed by the first annular ribs 111a and 111b and the second annular ribs 121a and 121b. The separation is prevented, and the cage 130 is prevented from being separated by the connecting ribs 133a and 133b that are alternately formed. That is, as shown in FIG. 5, when the cage 130 is to be separated in the right direction, the separation is prevented by the connecting rib 133a, and when the cage 130 is to be separated in the left direction, by the connecting rib 133b. Departure is prevented.

또한, 도 3 및 도 4에 도시된 바와 같이, 롤링소자(140)의 단부에 리세스(recess;141)가 형성됨으로써 구동시에 케이지(130)와의 마찰저항이 대폭 저감된다.3 and 4, a recess 141 is formed at the end of the rolling element 140, thereby significantly reducing frictional resistance with the cage 130 during driving.

상술한 바와 같은 본 발명 베어링은 다음과 같은 이점을 가진다.The bearing of the present invention as described above has the following advantages.

첫째, 일체로 형성된 케이지(130)의 결합공(131)에 롤링소자(140)들의 결합이 간편해지고, 또한 제1이탈홈(112)과 제2이탈홈(122)을 일치시킴으로써 롤링소자(140)들의 분리를 간편하게 한다.First, the coupling of the rolling elements 140 to the coupling hole 131 of the cage 130 integrally formed is simplified, and also the rolling element 140 by matching the first escape groove 112 and the second escape groove 122. Simplify separation of).

둘째, 케이지(130)의 결합공(131)사이를 상호 교호적으로 형성되는 연결리브(133a)(133b)에 의해 연결시킴으로써 구동중 일방향으로의 이탈을 방지하여 안정된 구동을 가능하게 한다.Second, by connecting between the coupling holes 131 of the cage 130 by the connecting ribs 133a, 133b are formed alternately to prevent the deviation in one direction during the drive to enable a stable drive.

세째, 롤링소자(140)에 리세스(141)를 형성함으로써 마찰저항을 감소시켜 롤링소자(140)의 수명을 연장가능하게 한다.Third, by forming the recess 141 in the rolling element 140, the frictional resistance can be reduced to extend the life of the rolling element 140.

네째, 로울러 형태의 롤링소자를 채용함으로써 레이디얼 및 드러스트방향 하중에 대해서도 적용이 가능하다.Fourth, by adopting a roller-type rolling element, it is possible to apply to radial and thrust loads.

다섯째, 본 발명 베어링은 구조상 기계적 가공만으로도 작업이 가능하므로 제작시간 및 제작비용을 대폭 절감한다.Fifth, the bearing of the present invention can be worked only by mechanical processing in structure, greatly reducing the manufacturing time and manufacturing cost.

Claims (4)

샤프트가 결합되는 중공이 형성되고, 외주면 양단 가장자리에는 제1이탈홈이 형성된 제1환형리브를 구비하는 내륜;과An inner ring having a hollow to which the shaft is coupled, and having first annular ribs having first release grooves formed at both edges of the outer circumferential surface thereof; 상기 내륜보다 큰 중공을 가지고 내륜과 동심상으로 마련되며 그 내주면의 양단 가장자리에는 제2이탈홈이 형성된 제2환형리브를 구비하여 상기 제1이탈홈과 제2이탈홈이 마주볼 때 상기 롤링소자들의 분리가 가능하도록 되는 외륜;과The rolling element has a hollow larger than the inner ring and is provided concentrically with the inner ring, and has a second annular rib formed at both ends of the inner circumferential surface thereof with a second release groove, so that the first release groove and the second release groove face each other. Outer ring to be separated; and 상기 제1환형리브와 제2환형리브로 이루어지는 통로를 따라 구름이동가능하게 마련되는 복수의 롤링소자;와A plurality of rolling elements provided to be cloud-movable along a passage consisting of the first annular rib and the second annular rib; 상기 내륜과 외륜사이에 동심상으로 회전가능하게 결합되고, 그 주면에 상기 롤링소자들이 헐겁게 결합되는 복수의 결합공들이 일정간격으로 형성되며, 상기 결합공 상호간 반대측에는 개구가 형성되는 케이지;와A cage which is rotatably coupled concentrically between the inner ring and the outer ring, and a plurality of coupling holes in which the rolling elements are loosely coupled to the main surface thereof are formed at predetermined intervals, and the openings are formed on opposite sides of the coupling holes; 상기 롤링소자의 일단부에 구비되어 상기 케이지와의 마찰저항이 저담되도록 하는 리세스;를 포함하여 구성되는 것을 특징으로 하는 베어링.And a recess provided at one end of the rolling element to reduce frictional resistance with the cage. 삭제delete 삭제delete 삭제delete
KR10-2001-0041387A 2001-07-10 2001-07-10 bearing KR100424334B1 (en)

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KR101446036B1 (en) * 2013-01-30 2014-10-01 안정선 Roll bearing of work roll chock
CN108019424A (en) * 2017-12-06 2018-05-11 安徽睿知信信息科技有限公司 A kind of single row roller bearing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145323A (en) * 1988-11-28 1990-06-04 Tosoh Corp Impact absorber
JPH05263829A (en) * 1992-03-19 1993-10-12 Chubu Bearing Kk Cage for needle bearing
JPH09177771A (en) * 1995-12-28 1997-07-11 Ntn Corp Sealed double row cylindrical roller bearing
JPH09236129A (en) * 1996-02-29 1997-09-09 Ntn Corp Roller bearing holder and roller bearing
KR200250956Y1 (en) * 2001-07-11 2001-11-17 주식회사 한일하이테크 bearing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145323A (en) * 1988-11-28 1990-06-04 Tosoh Corp Impact absorber
JPH05263829A (en) * 1992-03-19 1993-10-12 Chubu Bearing Kk Cage for needle bearing
JPH09177771A (en) * 1995-12-28 1997-07-11 Ntn Corp Sealed double row cylindrical roller bearing
JPH09236129A (en) * 1996-02-29 1997-09-09 Ntn Corp Roller bearing holder and roller bearing
KR200250956Y1 (en) * 2001-07-11 2001-11-17 주식회사 한일하이테크 bearing

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